Severe · Flood WatchActive alert
Flood Watch issued October 16 at 2:31PM ChST until October 18 at
Affecting Guam; Rota; Tinian; Saipan
In effect until: Oct 17, 2026, 5:45 AM
Guam; Rota; Tinian; Saipan
Possible impact zone; conditions develop through 5:45 AM.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Read the original bulletin (official text)
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Saipan and Tinian. * WHEN...Through Sunday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - Tropical Storm Champi is approaching the Marianas and will bring torrential rain Saturday night and Sunday at least. Total rainfall accumulations of 12 to 20 inches are possible for Guam, 10 to 18 inches for Rota and 8 to 12 inches for Tinian and Saipan. This could cause flooding problems in poor drainage and flood prone areas. - http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™